Early in my .NET career Framework Design Guidelines made a big impression and improved my code quality. I liked the prescriptive "Do/Don't/Consider + ELI5" style of the rules and to this day use that approach in some of my writing to customers. It's since been baked into the static analysis tools so no need to buy the book, but I would like to see more books on other topics with similar style.

https://www.oreilly.com/library/view/framework-design-guidel...